The study of influence of gas-dispersed medium like coal dust-air on the optical radiation attenuation

2012 ◽  
Author(s):  
Julia L. Mikhanoshina ◽  
Andrey N. Pavlov ◽  
Eugene V. Sypin
Keyword(s):  
Optical Radiation ◽  
Coal Dust ◽  
Radiation Attenuation ◽  
Dispersed Medium

Computer simulation of optical radiation scattering by aerosol media

2020 ◽  
Vol 86 (8) ◽  
pp. 43-48
Author(s):  
V. V. Semenov
Keyword(s):  
Finite Element Method ◽  
Computer Simulation ◽  
Finite Element ◽  
Optical Radiation ◽  
Light Transmission ◽  
Initial Conditions ◽  
Practical Significance ◽  
The Finite Element Method ◽  
Dispersed Medium ◽  
Element Method

Development of the technologies simulating optical processes in an arbitrary dispersed medium is one of the important directions in the field of optical instrumentation and can provide computer simulation of the processes instead of using expensive equipment in physical experiments. The goal of the study is simulation of scattering of optical radiation by aerosol media using the finite element method to show a practical significance of the results of virtual experiments. We used the following initial conditions of the model: radius of a spherical particle of distilled water is 1 μm, wavelength of the incident optical radiation is 0.6328 μm, air is a medium surrounding the particle. An algorithm for implementation of the model by the finite element method is proposed. A subprogram has been developed which automates a virtual experiment for a group of particles to form their random arrangement in the model and possibility of changing their geometric shape and size within predetermined intervals. Model dependences of the radiation intensity on the scattering angle for single particle and groups of particles are presented. Simulation of the light transmission through a dispersed medium provides development of a given photosensor design and determination of the minimum number of photodetectors when measuring the parameters of the medium under study via analysis of the indicatrix of scattering by a group of particles.

Physical processes in coal dust investigation on reduction factor of optical radiation

2009 ◽  
Author(s):  
Elena V. Baryshnikova ◽  
Irina U. Uskova ◽  
Ekaterina V. Berestova ◽  
Eugeniy S. Povernov ◽  
Eugene V. Sypin
Keyword(s):  
Optical Radiation ◽  
Coal Dust ◽  
Reduction Factor ◽  
Physical Processes
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